CVS commit by tokoe: 

Improved the summary drag&drop, now you can drag all widgets from one side to
the other and vice versa.


  A            plugins/summary/dropwidget.cpp   1.1 [LGPL (v2+)]
  A            plugins/summary/dropwidget.h   1.1 [LGPL (v2+)]
  M +2 -1      interfaces/summary.cpp   1.8
  M +2 -1      interfaces/summary.h   1.11
  M +1 -1      plugins/summary/Makefile.am   1.6
  M +31 -14    plugins/summary/summaryview_part.cpp   1.45
  M +3 -2      plugins/summary/summaryview_part.h   1.24